scripts/bloatcheck

   1 #!/bin/bash
   2
   3 if [ $# -ne 2 ]
   4 then
   5   echo "usage: bloatcheck old new"
   6   exit 1
   7 fi
   8
   9 addline()
  10 {
  11   NEXT="$(printf "%s% $((50-${#LASTNAME}))d% 10d %10d" "$LASTNAME" "$OLD" "$NEW" "$DELTA")"
  12   [ -z "$STUFF" ] &&
  13     STUFF="$NEXT" ||
  14     STUFF="$(printf "%s\n%s" "$STUFF" "$NEXT")"
  15 }
  16
  17 do_bloatcheck()
  18 {
  19   LASTNAME=
  20   DELTA=0
  21   TOTAL=0
  22   OLD=0
  23   NEW=0
  24   STUFF=
  25
  26   printf "name% 46s% 10s% 11s\n" old new delta
  27   echo "-----------------------------------------------------------------------"
  28   while read a b c d
  29   do
  30     THISNAME=$(echo "$d" | sed 's/[.][0-9]*$//')
  31
  32     if [ "$LASTNAME" != "$THISNAME" ]
  33     then
  34       TOTAL=$(($TOTAL+$DELTA))
  35       [ $DELTA -ne 0 ] && addline
  36       LASTNAME="$THISNAME"
  37       DELTA=0
  38       OLD=0
  39       NEW=0
  40     fi
  41
  42     SIZE=$(printf "%d" "0x$b")
  43     if [ "$a" == "-" ]
  44     then
  45       OLD=$(($OLD+$SIZE))
  46       SIZE=$((-1*$SIZE))
  47     else
  48       NEW=$(($NEW+$SIZE))
  49     fi
  50     DELTA=$(($DELTA+$SIZE))
  51   done
  52
  53   TOTAL=$(($TOTAL+$DELTA))
  54   [ $DELTA -ne 0 ] && addline
  55
  56   echo "$STUFF" | sort -k4,4nr
  57   echo "-----------------------------------------------------------------------"
  58   printf "% 71d total\n" "$TOTAL"
  59 }
  60
  61 DIFF1=`mktemp base.XXXXXXX`
  62 DIFF2=`mktemp bloat.XXXXXXX`
  63 trap "rm $DIFF1 $DIFF2" EXIT
  64 nm --size-sort "$1" | sort -k3,3 > $DIFF1
  65 nm --size-sort "$2" | sort -k3,3 > $DIFF2
  66 diff -U 0 $DIFF1 $DIFF2 | tail -n +3 | sed -n 's/^\([-+]\)/\1 /p' \
  67   | sort -k4,4 | do_bloatcheck